Browsing NTNU Open by Author "Kongsrud, Jon Anders"
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A faunistic assessment of species diversity in the class Ascidiacea in Norwegian waters using morphological and molecular analyses, including three case studies of the genera Ascidiella Roule, 1884, Botryllus Gaertner, 1774, and Botrylloides Milne Edwards, 1841
Mathisen, Tiril Sørlie (Master thesis, 2023)I moderne systematikk brukes en integrativ tilnærming for artsavgrensning, hvor morfologiske og molekylære metoder ofte kombineres. Ett av målene med DNA-strekkoding er å bygge en plattform for identifisering av dyrearter, ... -
A mega-cryptic species complex hidden among one of the most common annelids in the North East Atlantic
Nygren, Arne; Parapar, Julio; Meissner, Karin; Pons, Joan; Bakken, Torkild; Kongsrud, Jon Anders; Gaeva, Daria; Oug, Eivind; Sirkoski, Andrey; Johansen, Robert Andre; Hutchings, Pat; Lavasque, Nicolas; Capa Corrales, Maria (Journal article; Peer reviewed, 2018)We investigate mitochondrial (COI, 16S rDNA) and nuclear (ITS2, 28S rDNA) genetic structure of North East Atlantic lineages of Terebellides, a genus of sedentary annelids mainly inhabiting continental shelf and slope ... -
Bryozoans in shallow water habitats in Norway: New records and DNA barcoding
Benjaminsen, Tine Mathilde (Master thesis, 2022)Det er få studier om mosdyr i Norge, de fleste er fra 1850-1950. Denne masteroppgaven hadde derfor som mål å bidra med ny kartlegging av mosdyr langs norskekysten i grunne habitater. I tillegg bidra med prøver til DNA ... -
Deep-water species of the genus Ophelina (Annelida, Opheliidae) in the Nordic Seas, with the description of Ophelina brattegardi sp. nov
Kongsrud, Jon Anders; Bakken, Torkild; Oug, Eivind (Journal article; Peer reviewed, 2011)Six species of Ophelina Ørsted, 1843 have been identified in an extensive material covering 145 localities from 575 to 3900 m depth in the Nordic Seas. Ophelina opisthobranchiata Wirén, 1901 and O. helgolandiae Augener, ... -
Diversity, habitat endemicity and trophic ecology of the fauna of Loki’s Castle vent field on the Arctic Mid-Ocean Ridge
Eilertsen, Mari Heggernes; Kongsrud, Jon Anders; Tandberg, Anne Helene S.; Alvestad, Tom; Budaeva, Nataliya; Martell, Luis; Ramalho, Sofia P.; Falkenhaug, Tone; Huys, Rony; Oug, Eivind; Bakken, Torkild; Høisæter, Tore; Rauch, Cessa; Carvalho, Francisca Maria Correia de; Savchenko, Alexandra; Ulvatn, Tone; Kongshavn, Katrine; Berntsen, Cassandra Mari; Olsen, Bernt Rydland; Pedersen, Rolf B. (Journal article; Peer reviewed, 2024)Loki’s Castle Vent Field (LCVF, 2300 m) was discovered in 2008 and represents the first black-smoker vent field discovered on the Arctic Mid-Ocean Ridge (AMOR). However, a comprehensive faunal inventory of the LCVF has not ... -
Feltarbeid i Saltstraumen marine verneområde. Utfordringer og metodikk for observasjon og skånsom innsamling av marin fauna i en av verdens sterkeste tidevannsstrømmer
Bakken, Torkild; Kongshavn, Katrine; Martell Hernández, Luis Felipe; Alvestad, Tom; Kongsrud, Jon Anders (NTNU Vitenskapsmuseet naturhistorisk notat;, Research report, 2020)Det ble gjennomført feltarbeid i Saltstraumen i september 2019 for å kartlegge fauna av marine invertebrater. Feltarbeidet ble gjennomført i samarbeid med interessegruppa for Saltstraumen marine verneområde som arrangerte ... -
Integrative Taxonomy Reveals Hidden Diversity in the Genus Chaetozone (Annelida, Cirratulidae) in Norwegian Waters
Grosse, Maël Ariel (Master thesis, 2019)The polychaetes of the family Cirratulidae (Annelida) are common inhabitants in offshore benthic sediments and considered as an important group in environmental monitoring. Amongst them, the genus Chaetozone is the most ... -
Lugworms (Arenicolidae, Annelida) in Norwegian waters - species diversity and habitat preferences
Dille, Marthe Ree (Master thesis, 2022)Arenicola marina Linnaeus, 1758 er en godt kjent art langs norskekysten. Nylig ble en ny art beskrevet som tidligere ble identifisert som A. marina. Denne nye arten, Arenicola defodiens Cadman & Nelson-Smith, 1993 har ikke ... -
Mapping of marine benthic invertebrates in the Oslofjord and the Skagerrak: sampling data of museum collections from 1950–1955 and from recent investigations
Oug, Eivind; Christiansen, Marit Ellen; Dobbe, Kristine; Rønning, Ann-Helen; Bakken, Torkild; Kongsrud, Jon Anders (Journal article; Peer reviewed, 2015)Data from large sampling programmes for the mapping of marine invertebrates in the Oslofjord, Norway, and the Skagerrak, spanning more than six decades, are compiled and digitized to provide easy access in modern data ... -
Original specimens and type localities of early described polychaete species (Annelida) from Norway, with particular attention to species described by O.F. Müller and M. Sars
Oug, Eivind; Bakken, Torkild; Kongsrud, Jon Anders (Journal article; Peer reviewed, 2014)Early descriptions of species from Norwegian waters are reviewed, with a focus on the basic requirements for reassessing their characteristics, in particular, by clarifying the status of the original material and locating ... -
Polychaetes from Jan Mayen (Annelida, Polychaeta)
Bakken, Torkild; Kongsrud, Jon Anders; Oug, Eivind; Cochrane, Sabine; Moen, Toril Loennechen; Solbakken, Beata Elisabeth Borowiec (Journal article; Peer reviewed, 2010)A thorough literature review has been undertaken to establish the first complete account of polychaetes recorded from the area around the volcanic island of Jan Mayen. The annotated checklist lists 121 species-level taxa, ... -
Polychaetous annelids in the deep Nordic Seas: Strong bathymetric gradients, low diversity and underdeveloped taxonomy
Oug, Eivind; Bakken, Torkild; Kongsrud, Jon Anders; Alvestad, Tom (Journal article; Peer reviewed, 2016)Not much is known on polychaete diversity in the deep Nordic Seas. Based on data from extensive sampling over three decades, new data on polychaetes covering depths from 550 m to 3800 m are presently reported. On a depth ... -
Species delimitation analyses of NE Atlantic Chaetozone (Annelida, Cirratulidae) reveals hidden diversity among a common and abundant marine annelid
Grosse, Maël Ariel; Bakken, Torkild; Nygren, Arne; Kongsrud, Jon Anders; Capa, Maria (Peer reviewed; Journal article, 2020)The polychaetes of the family Cirratulidae (Annelida) are common inhabitants in continental shelf benthic environments and considered an important group of organisms in environmental monitoring surveys. The family represents ... -
Using morphology and DNA barcoding to assess species diversity within the isopod genera Jaera Leach, 1814, Janira Leach, 1814 and Idotea Fabricius, 1798 in Norway
Nymoen, August Rustad (Master thesis, 2021)Foreningen av morfologiske undersøkelser og DNA strekkoding, vil for mange regnes som de mest sentrale metodene i moderne studier om biodiversitet. Sammen har disse metodene stor kapasitet til å gi ny kunnskap og innsikt ... -
When standard DNA barcodes do not work for species identifcation: intermixed mitochondrial haplotypes in the Jaera albifrons complex(Crustacea: Isopoda)
Nymoen, August Rustad; Kongsrud, Jon Anders; Willassen, Endre; Bakken, Torkild (Journal article; Peer reviewed, 2024)Here, we characterise the standard “Folmer region” of the mitochondrial cytochrome c oxidase subunit 1 (CO1) marker and a fragment of nuclear 28S marker in four species of the Jaera albifrons complex. Jaera albifrons (Leach, ...